Heute hab ich mal den gesamten Netzwerkverkehr mit tcpdump mitgenschnitten. Folgendes kam dabei (mehrmals) zu Tage:
00:10:83:77:dd:6e ist die MAC-Adresse, die es eigentlich nicht geben dürfte.Code:11:04:26.347609 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:10:83:77:dd:6e (oui Unknown), length: 548 11:05:01.948893 IPX 00000000.00:10:83:77:dd:6e.0452 > 00000000.ff:ff:ff:ff:ff:ff.0452: ipx-sap-resp IntelNetport2/HP JetDirect/HP Quicksilver '00108377DD6E80CXNPI77DD6E' addr 00000000.00:10:83:77:dd:6e
Zu "ipx-sap-resp" hab ich folgendes im Internet gefunden:
"The Novell IPX protocol uses Service Advertiser Protocol (SAP) announcements to advertise services to end users. A type code is used within the SAP advertisement to specify the type of service that is available.
A listing of commonly used IPX SAP type codes is maintained by the Internet Assigned Numbers Authority (IANA). The information presented here is reproduced with permission from the IANA. For the most current SAP type code number assignment information, refer to http://www.iana.org/numbers.htm under the "Novell SAP Numbers" link. Table J-1 shows the SAP type code numbers in both decimal and hexadecimal."
Quelle: Default Safari Online - 1587050242 - Cisco® Field Manual: Router Configuration


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